Disclaimer2010 Land Rover LR4 (LA) V8-5.0L Technical Service Bulletin # TECLTB000772 Date: 090729

Disclaimer2010 Land Rover LR4 (LA) V8-5.0L Technical Service Bulletin # TECLTB000772 Date: 090729

Suspension - Will Not Lower/DTC C1A13-64 Stored

No: LTB00077

Issue: 2

Date: 29 JULY 2009

ISSUE '2' CHANGES ARE HIGHLIGHTED WITH GRAY BACKGROUND AND/OR ASTERISKS.

SECTION: 204

Suspension Will Not Lower - Repair Procedure

AFFECTED VEHICLE RANGE

CONDITION SUMMARY:

Situation:

2010 Land Rover LR4 (LA) V8-5.0L Page 106

A situation has been identified where corrosion or contamination may be blocking the air suspension compressor exhaust muffler causing the vehicle

to not lower and possibly store Diagnostic Trouble Code (DTC) C1A13-64. A new dryer desiccant gives improved durability by keeping the system

dry to prevent further corrosion. A new muffler with an additional hole will allow any residual corrosion debris to escape.

Action:

Should a customer complain of the symptoms above, install a new air suspension compressor dryer kit and compressor exhaust muffler. Follow the

repair procedure outlined below.

PARTS

WARRANTY:

NOTE:

Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only. Always

refer to DDW to obtain the latest repair time.

DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.

REPAIR PROCEDURE

MUFFLER REMOVAL

NOTE:

Global Technical Reference (GTR) lookup sequence is as follows: GTR Home > NAS > Service Information > Range Rover > Workshop Manual >

Section 204-05: Vehicle Dynamic Suspension

NOTE:

Do not carry out step 11 in section 60.50.10 (removal of the rubber mountings and the electrical harness clip), as this is for access only.

1. Remove the air suspension compressor.

2. If the muffler is the push-in type (VIN 6A198057 - 6A212982), perform the following:

^ Depress retaining clip and withdraw adaptor.

^ Unscrew the exhaust muffler from the adaptor. (Figure 1)

2010 Land Rover LR4 (LA) V8-5.0L Page 107

^ Discard the removed exhaust muffler.

3. If the muffler is the screw thread type (*VIN 6A212983 - 8A287013*), perform the following:

^ Unscrew the exhaust muffler from the compressor. (Figure 1)

^ Discard the removed exhaust muffler.

MUFFLER INSTALLATION

1. If the muffler is the push-in type (VIN 6A198057 - 6A212982), perform the following:

^ Apply Loctite L243 locking compound (STC50552) to the threads of the new exhaust muffler.

^ Install the muffler into the original adaptor body.

^ Tighten to 2.5 Nm (22.1 lbf.in).

^ Clean the component mating faces.

^ Push fit adaptor and muffler into compressor exhaust port.

2. If the muffler is the screw thread type (*VIN 6A212983 - 8A287013*), perform the following:

^ Apply Loctite L243 locking compound (STC50552) to the threads of the new exhaust muffler.

^ Install the muffler into compressor exhaust port, and tighten to 2.5 Nm (22.1 lbf.in).

COMPRESSOR DRYER REPLACEMENT

NOTE:

Global Technical Reference (GTR) lookup sequence is as follows: GTR Home > NAS > Service Information > Range Rover > Workshop Manual >

Section 204-05: Vehicle Dynamic Suspension

1. Install a new air suspension compressor dryer.

2. Install the air suspension compressor.

CHECKING / CLEARING DTCS

CAUTION:

A Midtronics PSC-550 Vehicle Power Supply must be connected to the vehicle battery during diagnosis and module configuration.

1. Connect the Midtronics PSC-550 Vehicle Power Supply to the vehicle.

2. Connect IDS to the vehicle and begin a new diagnostic session by entering the correct VIN for the current vehicle.

3. Follow the IDS prompts to read the vehicle configuration.

4. When prompted 'Do you wish to read diagnostic trouble codes?' select 'YES' and then press 'tick' to continue.

5. Clear diagnostic trouble codes.

6. Follow all on-screen instructions to complete this task.

7. When the task is completed, exit the current session.

8. Disconnect IDS and the Midtronics PSC-550.